{ config, pkgs, ... }@all: with all; {
  # services.greetd = {
  #   enable = true;
  #   settings = rec {
  #     hyprland = {
  #       command = "${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd Hyprland --remember-user-session --window-padding 5";
  #       user = hyper.user;
  #     };
  #     default_session = hyprland;
  #     vt = 2;
  #   };  
  #   # useTextGreeter = true;
  # };
  services.displayManager.ly = {
# info and docs at https://codeberg.org/fairyglade/ly/src/branch/master/res/config.ini
    enable = true;
    package = pkgs.ly;
    settings = with rice.color; let h = rice.lib.nohash; in {
      allow_empty_password = false;
      animation = "matrix";
      animation_timeout_sec = 0; # forever
      asterisk = "*";
      auth_fails = 10;
      # auto_login_session = "hyprland";
      # auto_login_user = hyper.user;
      battery_id = if hyper.isMobile then "BAT0" else null;
      bg = "0x00${h background}";
      bigclock_12hr = false;
      bigclock = "en";
      bigclock_seconds = false;
      blank_box = true; # not transparent
      border_fg = "0x00${h border}";
      box_title = " Optimistic Nihilism ";
      clear_password = true;
      clock = "%c";
      cmatrix_fg = "0x00${h accent.base}";
      cmatrix_head_col = "0x01${h accent.bright}";
      cmatrix_max_codepoint = "0x7B";
      cmatrix_min_codepoint = "0x21";
      colormix_col1 = "0x00${h accent.base}";
      colormix_col2 = "0x00${h secondary.base}";
      colormix_col3 = "0x20${h tertiary.base}";
      default_input = "password";
      # doom_bottom_color = 0x00FFFFFF;
      # doom_fire_height = 6; # 1-9
      # doom_fire_spread = 2; # 0-4
      # doom_middle_color = 0x00C78F17;
      # doom_top_color = 0x009F2707;
      # dur_file_path = $CONFIG_DIRECTORY/ly/example.dur;
      # dur_offset_alignment = center; # Available inputs: topleft, topcenter, topright, centerleft, center, centerright, bottomleft, bottomcenter, bottomright
      # Dur offset x direction (value is added to the current position determined by alignment, negatives are supported)
      # dur_x_offset = 0;
      # dur_y_offset = 0; # Dur offset y direction (value is added to the current position determined by alignment, negatives are supported)
      # edge_margin = 0; # Set margin to the edges of the DM (useful for curved monitors)
      error_bg = "0x00${h negative.darker}";
      error_fg = "0x01${h negative.base}";
      fg = "0x00${h foreground}";
      full_color = true;
      # gameoflife_entropy_interval = 20; # None
      # gameoflife_fg = "0x00${h accent.base}";
      # gameoflife_frame_delay = 6;
      # gameoflife_initial_density = 0.4;
      # # hibernate_cmd = null;
      # # hibernate_key = F4;
      hide_borders = false; # Remove main box borders
      hide_keyboard_locks = false; # Remove keyboard lock states from the top right corner
      hide_key_hints = false; # Remove power management command hints
      hide_version_string = true;
      # initial_info_text = "Login to ${hyper.host}";
      # input_len = 35;
      lang = "de";
      save = true; # Save the current desktop and login as defaults, and load them on startup
      # numlock = false;
      # text_in_center = true; # Center the session name.
      # vi_default_mode = "normal";
      # vi_mode = true;
      # xinitrc = null;
      # xsessions = null;
    };
  };

  environment.systemPackages = with pkgs; [
    cmatrix    
  ];
}